Recent studies have demonstrated that the longevity-associated variant (LAV) of bactericidal/permeability-increasing fold-containing family Bmember-4 (BPIFB4) protein promotes health and longevity, by enhancing the vascular cell homeostasis, revascularization after ischemic injury, and largely counterbalancing age-related impairments of the immune system and cardiovascular system. These findings helped us to partially explain the health status of Long-Living-Individuals (LLIs) and their homozygous genotype enrichment for LAV-BPIFB4. The levels of circulating BPIFB4 may have an influence on the composition of monocytes and macrophages and may shift the balance toward an anti-inflammatory status. An association was found between non-classical CD14+CD16++ monocyte counts, which are precursors of M2 macrophages with immunomodulatory functions, and LLIs' state. During the ageing process, systemic aging is driven by the senescent immune system, which could be a key therapeutic target to prevent the pathological consequences of aging and extend longevity. Several data show a new senotherapeutic action of LAV-BPIFB4 that may offer a valuable therapeutic tool to control aging and reduce its pathophysiological disorders, such as CVDs or, in senescent GBM cells, enhancement of their sensitivity to temozolomide and a selective reduction of the T cells’ senescence from GBM patients. As a result of its pleiotropic effects on both immune compartments and cellular homeostasis, LAV-BPIFB4 may represent an attractive candidate for developing a new treatment for HD. Indeed, when compared to normal Abstract 2 STHdh Q7/7 cells, STHdh Q111/111 cells were unable to induce proresolving microglia phenotype, but LAV-BPIFB4 transduction promptly restored the central immune control through a mechanism involving the CXCR4 axis. Since platelets are primary mediators in innate immune response and combat infection, it was researched the role of this blood figurative elements in immunomodulatory processes of the BPIFB4 protein.
Studi recenti hanno dimostrato che la variante associata alla longevità (LAV) della proteina bactericidal/permeability-increasing fold-containing family B-member-4 (BPIFB4) promuove la salute e la longevità, migliorando l'omeostasi delle cellule vascolari, la rivascolarizzazione dopo danno ischemico e controbilanciando in gran parte i disturbi legati all’età del sistema immunitario e del sistema cardiovascolare. Questi risultati ci hanno aiutato a spiegare parzialmente lo stato di salute degli individui longevi (LLI) e il loro arricchimento del genotipo omozigote per LAV-BPIFB4. I livelli circolanti di BPIFB4 possono influenzare la composizione di monociti e macrofagi e possono spostare l’equilibrio verso uno stato antinfiammatorio. È stata trovata un'associazione tra la conta dei monociti CD14+CD16++ non classici, che sono precursori dei macrofagi M2 con funzioni immunomodulatorie, e lo stato degli LLI. Durante il processo di invecchiamento, l’invecchiamento sistemico è guidato dal sistema immunitario senescente, che potrebbe essere un bersaglio terapeutico chiave per prevenire le conseguenze patologiche dell’invecchiamento e prolungare la longevità. Numerosi dati mostrano una nuova azione senoterapeutica di LAV-BPIFB4 che potrebbe offrire un prezioso strumento terapeutico per controllare l’invecchiamento e ridurre i suoi disturbi fisiopatologici, come le malattie cardiovascolari o, nelle cellule di glioblastome multiforme, GBM, senescenti, un miglioramento della loro sensibilità alla temozolomide e una riduzione selettiva della senescenza cellulare di pazienti affetti da GBM. Come risultato dei suoi effetti pleiotropici sia sui compartimenti immunitari che sull’omeostasi cellulare, LAV-BPIFB4 può rappresentare un candidato interessante per lo sviluppo di un nuovo trattamento per la malattia di Hungtington, HD. Infatti, rispetto alle normali cellule STHdh Q7/7, le cellule STHdh Q111/111 non erano in grado di indurre un fenotipo microgliale pro-risoluzione, ma la trasduzione di LAV-BPIFB4 ripristinava prontamente il controllo immunitario centrale attraverso un meccanismo che coinvolge l'asse CXCR4. Poiché le piastrine sono mediatori primari della risposta immunitaria innata e combattono le infezioni, è stato studiato il ruolo di questi elementi figurati del sangue nei processi immunomodulatori della proteina BPIFB4.
Therapeutic potentials of the BPIFB4 protein and its Longevity Associated Variant (LAV) in senescence related conditions and its role in platelet function / Francesco Montella - Università degli Studi di Salerno. , 2024 Apr 30. XXXV ciclo. ciclo, Anno Accademico 2021-2022.
Therapeutic potentials of the BPIFB4 protein and its Longevity Associated Variant (LAV) in senescence related conditions and its role in platelet function.
MONTELLA, Francesco
2024
Abstract
Recent studies have demonstrated that the longevity-associated variant (LAV) of bactericidal/permeability-increasing fold-containing family Bmember-4 (BPIFB4) protein promotes health and longevity, by enhancing the vascular cell homeostasis, revascularization after ischemic injury, and largely counterbalancing age-related impairments of the immune system and cardiovascular system. These findings helped us to partially explain the health status of Long-Living-Individuals (LLIs) and their homozygous genotype enrichment for LAV-BPIFB4. The levels of circulating BPIFB4 may have an influence on the composition of monocytes and macrophages and may shift the balance toward an anti-inflammatory status. An association was found between non-classical CD14+CD16++ monocyte counts, which are precursors of M2 macrophages with immunomodulatory functions, and LLIs' state. During the ageing process, systemic aging is driven by the senescent immune system, which could be a key therapeutic target to prevent the pathological consequences of aging and extend longevity. Several data show a new senotherapeutic action of LAV-BPIFB4 that may offer a valuable therapeutic tool to control aging and reduce its pathophysiological disorders, such as CVDs or, in senescent GBM cells, enhancement of their sensitivity to temozolomide and a selective reduction of the T cells’ senescence from GBM patients. As a result of its pleiotropic effects on both immune compartments and cellular homeostasis, LAV-BPIFB4 may represent an attractive candidate for developing a new treatment for HD. Indeed, when compared to normal Abstract 2 STHdh Q7/7 cells, STHdh Q111/111 cells were unable to induce proresolving microglia phenotype, but LAV-BPIFB4 transduction promptly restored the central immune control through a mechanism involving the CXCR4 axis. Since platelets are primary mediators in innate immune response and combat infection, it was researched the role of this blood figurative elements in immunomodulatory processes of the BPIFB4 protein.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.


